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Niechcial,Steve · 21st Nov 2014, 9:57 am

One of these MK2 dual standard Portaramas as described came up on Ebay a year or two back. The picture of the set was very much as described with all the UHF gubbins in an extended top panel. The one for sale also had a toggle switch to turn off the AGC. Apparently it was one of a number modified and used by the GPO to test the real reception conditions of the then new UHF network.
The standard set had absolutely nothing dual standard about it apart from a power socket to feed a UHF tuner. I presume that was a gimmick included so they could market it as 'convertible'. So the dual standard version must include an additional IF strip as well as some timebase switching. I am not aware of any conversion kits, but perhaps the MK2 with UHF was such an animal?

21st Nov 2014, 9:57 am	#15
Niechcial,Steve Hexode Join Date: Jan 2007 Location: Beckenham, London, UK. Posts: 373	Re: Perdio Portarama Dual Standard One of these MK2 dual standard Portaramas as described came up on Ebay a year or two back. The picture of the set was very much as described with all the UHF gubbins in an extended top panel. The one for sale also had a toggle switch to turn off the AGC. Apparently it was one of a number modified and used by the GPO to test the real reception conditions of the then new UHF network. The standard set had absolutely nothing dual standard about it apart from a power socket to feed a UHF tuner. I presume that was a gimmick included so they could market it as 'convertible'. So the dual standard version must include an additional IF strip as well as some timebase switching. I am not aware of any conversion kits, but perhaps the MK2 with UHF was such an animal?